Other big name
celebrities including British TV host Stephen Fry, the supermodel
Naomi Campbell and celebrity chef Nigella Lawson have also
participated in the campaign.

"I considered asking friends to donate money not to have to
attend another dreary charity dinner, but have decided that the
quickest way to raise money is through a social media campaign –
to try to replicate the astonishing success of the Ice Bucket
Challenge," Khan wrote in an article for the New Statesman
magazine.

UNICEF hope that the campaign will be as successful as its
predecessor, the ‘Ice
Bucket Challenge’, which raised more than £7 million for the
Motor Neuron Disease by September in the UK, possibly making it
the biggest online charity campaign of all time.